baber/WOPTO huggingface dataset:
Patent GB-968819-A (GB)
Title: Acrylonitrile polymer
Inventor: CORNISH ERIC HAYDN
IPC: C08F20/44
Filed: 1963-07-05
Abstract: Acrylonitrile is bulk polymerized using as a catalyst up to 10% by weight of a lower aliphatic ester of nitric acid. Esters exemplified are ethyl, isopropyl and amyl nitrate. The reaction may be accelerated by heating or irradiating with U.V. light or sodium light.  The reaction preferably takes place in the absence of oxygen.
Patent GB-516413-A (GB)
Title: Improvements in or relating to automatic or semi-automatic telephone systems
IPC: H04M15/04
Filed: 1938-06-14
Abstract: 516,413. Automatic exchange systems. POLLAK, J. E. (Associated Telephone & Telegraph Co.). June 14, 1938, Nos. 26907/39, (divided out of 510,348), 26908/39 and 26809/39 (both divided out of 516,409.) Drawings to Specification, [Class 40 (iv)] - The arrangements described form part of the system described in Specifications 516,348, 516,408 and 516,409, the circuits being identical with those described in the last-mentioned Specification. The present invention relates more 'particularly to the rapid printing of the particulars of the connections on termination thereof, by the use of separate printing magnets for each character, printing being effected by pulses over selected leads to the magnets. Two printers are used, one of which may print all the particulars of a call in a single line across the paper of the roll for use as a permanent record and the other prints a readily detachable tabulated ticket for sending to the subscriber. The paper is perforated along the length of the roll for engagement with a sprocket wheel on the printer. Specification 516,414 relates to part of. the same system.
Patent GB-1222137-A (GB)
Title: Cooling arrangement for rotating electric machines
IPC: H02K9/16
Filed: 1968-06-06
Abstract: 1,222,137. Cooling dynamo-electric machines. GANZ VILLAMOSSAGI MUVEK. 6 June, 1968, No. 27085/68. Heading H2A. In cooling a laminated body forming the stator or rotor of a dynamo-electric machine, a plurality of cooling plates of good thermal conductivity material are spaced apart between the laminations, slots are formed in the plates and the material between the slots is twisted out of the planes of the plates to form cooling fins. In cooling a stator body 1, Fig. 1, the plates 2 are extended beyond the periphery of the body and the fins formed in the extended portions. In cooling a rotor body 1, Fig. 4, a bore is formed in the body and coolings fins formed in that part of each plate located in the bore. The stator body may include internal fins as in Fig. 4, either instead of the external fins, Fig. 1, or in addition thereto. In a modification, Fig. 6 (not shown) axially aligned holes are formed in the stator plates beyond the stator periphery and coolant, e.g. gas or liquid, is passed through tubes (4) inserted through the holes. Cooling inserts (6) may be located inside the tubes to increase the surface area in contact with the coolant. In an enclosed machine, Fig. 8 (not shown), coolant gas is directed over the stator and rotor fins and the stator plates are cooled by coolant passed through the tubes (4) from outside the machine.
Patent GB-1430312-A (GB)
Title: Print hammer actuating apparatus for a serial printing machine
IPC: B41J9/36
Filed: 1973-06-07
Abstract: 1430312 Selective printing ITT GREED Ltd 7 June 1973 27167/73 Heading B6F A print hammer driving arrangement includes a hammer spring driven on its printing stroke and an electromagnet subjected to a first current sufficient to retain the hammer in a retracted position (against the action of the spring drive) and a second current sufficient to withdraw the hammer to its retracted position after the printing stroke. As shown in Fig. 2 the electromagnet 6 receives the first current (smoothed half-wave rectified alternating current) when switch 9 is closed and the second current (unsmoothed half-wave rectified alternating current) when switch 12 is closed. Another embodiment, Fig. 3 (not shown) discloses a control system for controlling the supply of current to the electromagnet.
Patent GB-851772-A (GB)
Title: Cross-linked polyesters of dicyclopentadiene dicarboxylic acids
Inventor: MERTZWEILLER JOSEPH KERN
IPC: C08G63/199
Filed: 1958-08-25
Abstract: A resinous composition comprises the reaction product of a dicyclo-pentadiene dicarboxylic acid or an alkyl or hydrogenated derivatives thereof and a dihydric alcohol, diamine, amino alcohol or mixtures thereof, and a minor proportion of cross-linking agent consisting of an organic diisocyanate or an organic diisothiocyanate, or mixtures thereof.  For reaction with the dicarboxylic acid there can be used glycol, diethylene glycol, triethylene glycol, propylene glycol, 1, 2-, 1, 3-, 1, 4 or 2, 3-butane-diol, ethanolamine, aminobutanol, amino octanol, diglycol phthalate and ethylene diamine. Hexamethylene, phenylene and diphenylmethane diisocyanates or diisothiocyanates are suitable cross-linking agents.  In Examples (1) a polyester obtained by heating dicyclopentadiene 3, 7 dicarboxylic acid and glycol at reduced pressure, while passing a stream of natural gas to remove moisture is heated with diphenyl methane diisocyanate; (2) dihydrocyclo-pentadiene 3, 7 dicarboxylic acid, 2,3-butanediol and p-phenylene diisothiocyanate are reacted similarly.  The resins can be dissolved (with cobalt naphthenate) in mineral spirits, naphthas, cracked gas oil fractions, kerosenes, gasolenes, heptane, hexane, iso-octane, benzene, toluene and cyclohexane to p  give varnishes.
Patent GB-1153198-A (GB)
Title: Method of Analysis and Apparatus Suitable For Use Therein
Inventor: HILL THOMAS
IPC: G01N31/00
Filed: 1966-06-17
Abstract: 1,153,198. Determining the chemical nature of compounds. BRITISH HYDROCARBON CHEMICALS Ltd. 8 Aug., 1967 [17 June, 1966], No. 27179/66. Heading B1X. A method of analysing substances to determine the chemical nature of compounds reducible by hydrogen with formation of water comprises (a) applying heat from an external source to a sample of the substance so as to cause the temperature of the substance to rise at a predetermined and controlled rate, (b) passing hydrogen over the sample during the predetermined and controlled temperature rise, (c) measuring the quantity of water vapour present in the gas after it has passed over the sample with a sensitive detector having a response time which is short compared with the shortest time for the temperature of the sample to rise 1‹C. The detectors may be a thermal conductivity cell, density balance, or flame ionisation detector. In apparatus for performing the above method, a reference cell and sample cell in the detector may be connected by separate connections to the heated sample holder, a water absorber being located in the connection between the outlet and the reference cell, the connections between the cells and the outlet being such that in operation the gas flow rates through the two cells are equal and the volumes of the connections between the cells and the outlet are equal. Alternatively, a reference cell and sample cell in the detector may be connected by separate connections to the outlet of the sample container, the connections being such that in operation the gas flow rates through the two cells are equal, and the volumes of the connections between the cells and the outlet of the sample container are such that in operation a peak in water concentration in gas leaving the sample container gives rise to a differential peak in the output signal.
Patent GB-1027452-A (GB)
Title: Improvements in and relating to earth boring apparatus
IPC: E02F5/20
Filed: 1961-02-07
Abstract: 1,027,452. Ground augers. W. H. PAYNE. April 30, 1962 [Feb. 2, 1961], No. 27354/65. Divided out of 1,027,451. Heading E1F. The jib of the load handling apparatus of Specification 1,027,451 can be used for the attachment of an earth housing tool, of the auger type as described, by means of the gripping jaw assembly described in Specification 1,027,453. The boring tool has trunnions which are gripped by the jaws which may be partially released to allow the tool to plumb under gravitational force. The trunnions may be enclosed by a split ring which closes by pressure from the jaws and which may have a coating or ring of material of a high coefficient of friction. The split ring may be in two parts hinged together.
Patent GB-392973-A (GB)
Title: Improvements in or connected with means for controlling the supply of gas to gas burners
IPC: F16K17/00
Filed: 1932-07-04
Abstract: 392,973. Safety cut-off valves. BARRALET, J. H. and NEW GEYSERS (1931), Ltd., 25, Addington Square, London. July 4, 1932, No. 27439/31. [Class 135.] A safety cut-off valve adapted to be moved to its open position by the closing movement of a main cock is fitted with a permanent magnet for holding the cut-off valve in its closed position. The cut-off valve comprises a loose ball 21 mounted on an inclined tray 20 opposite a valve seat 27 and normally held away from its seat by a sliding catch 25 actuated by a light bell 24 acted on by the gas flowing through a nozzle 22. In the event of the gas supply failing the ball rolls down the tray until it comes within the sphere of influence of a permanent magnet 11 when it is attracted towards and finally held against the seat 27. The permanent magnet is supported by a ring 12 which also forms a guide for a pair of rods 16 coupled by a bridge 14 acted on by a spring 15 and carried by a rod 13. The rod 13 has a lateral arm 17 adapted to co-operate with a cam 18 secured to the plug of the main cock 5 so that when the cock is fully opened the rods are retracted and when closed are moved by the spring 15 to move the ball from its seat. The main cock is actuated by a pivoted handle 10 having a catch projection 29 and acted on by a spring 31 so that the cock can only be left either in the fully open or closed positions.
Patent GB-421676-A (GB)
Title: Improvements in the manufacture and production of diacetyl
IPC: C07C45/31
Filed: 1933-10-05
Abstract: Diacetyl is manufactured by causing divinyl (butadiene) or vinyl acetylene or gases containing them, e.g. those formed as bye-products in the preparation of acetylene in the electric arc, to react with acid aqueous solutions of mercuric salts and working up the reaction products while acid, preferably after heating for some time, e.g. to 100 DEG  C.  Practically any acids other than halogen hydracids may be employed, preferably inorganic acids, e.g. sulphuric, phosphoric or nitric acid.  The process may be carried out continuously by leading the vinyl compounds downwards through a tower charged with a warm acid solution of a mercury salt, the effluent gases being led through a condenser in which most of the diacetyl is condensed, then through an aqueous solvent such as water or sodium bisulphite solution to remove the rest of the diacetyl, and finally returned to the tower.  The amount of mercuric salt should preferably correspond to at least four molecular proportions of HgO to one of vinyl acetylene, and even more in the case of divinyl.  There is first formed a precipitate of a mercury compound from which diacetyl may be liberated by means of acids, including halogen hydroacids.  In examples: (1) vinylacetylene is passed at 15 DEG  C. into a solution of mercuric oxide in dilute sulphuric acid, and the reaction mixture is transferred to a distillation apparatus, heated to 90--100 DEG C., acidified with hydrochloric acid and distilled; (2) a gas containing vinyl acetylene and diacetylene, obtained by strongly cooling acetylene obtained in the electric arc, is similarly treated; (3) a gas as in (2) is reacted, by a continuous process as described above, with a solution of mercuric oxide in aqueous phosphoric acid; (4) butadiene is treated by the process of (1).
Patent GB-446843-A (GB)
Title: Process for the extraction of moisture from, and drying of, textile materials, and apparatus therefor
IPC: F26B13/00
Filed: 1934-09-25
Abstract: 446,843. Drying textile materials. OBERMAIER & CIE, Lambrecht, Pfalz, Germany. Sept. 25, 1934, No. 27459. Convention date, Sept. 25, 1933. [Class 34 (ii)] In a process for drying textile materials air is drawn through a batch of material to extract liquid therefrom, and after being given a movement at a low speed in a relatively large space so that liquid is separated out, the air is passed through a heating chamber and into a further batch of material from which liquid has already been extracted. When the extraction process in respect of the first batch is finished, atmospheric air is admitted to the heating chamber and forced through the further batch. In the construction shown, a perforated carrier 6 on which layers of warp threads have been wound is mounted on a seating 2 provided on a vessel 1. The vessel is fitted with a pipe 3 to which filters 4, 5 are secured and has a normally closed outlet 9 and an outlet 19 adapted for co-operation with valves 15, 16. The valves are connected to a control rod 14 engaged by a spring 17. The rod has a notch adapted to be engaged by a lever 13 connected by a rod 12 to a lever 11 provided with a float 10. The outlet 19 communicates with a pipe 21 leading to a motor-driven air impeller 23 and a heating chamber 24. This chamber communicates through conduit 25 with a vessel 27 containing a perforated carrier 28 supporting textile material from which liquid has already been extracted. In operation, the rotation of the impeller causes a flow of air through the material 7, and drops of liquid become separated from the air and collect in the vessel 1. The air flows through the impeller and through the heating chamber to the vessel 27, where it passes through the material on the carrier 28. When the liquid in the vessel 1 reaches a certain level, the float 10 operates to release the control rod so that the spring 17 acts to close the valve 15 and open the valve 16. Atmospheric air is then drawn through conduit 22 and passed through the heating chamber to the material in the carrier 28. As the interior of the vessel 1 is no longer at reduced pressure, owing to the valve 15 being closed, the water at the bottom of the vessel opens the valve 9 and escapes.
Patent GB-244059-A (GB)
IPC: F25B25/00
Filed: 1925-11-02
Abstract: 244,059. Soc. Anon. pour l'Exploitation des PrecÚdÚs M. Leblanc- Vickers. Dec. 2, 1924, [Convention date]. Refrigerating, compression and vacuum machines for.-The supplementary cooler B<1>, or the supplementary cooler and the condenser B, of a compression plant A - - D employing carbonic acid or other liquefiable refrigerant are cooled by water or other liquid supplied from the evaporator of a steam-operated vacuum refrigerating machine. In the arrangement shown, two vacuum machines are associated with the compression machine, water cooled in the evaporator M of one machine being delivered by a pump P and pipe L to the condenser B, while water at a lower temperature from the evaporator E of the second vacuum machine is delivered by a pump I and pipe J to the supplementary cooler B<1>. The water discharged from the cooler B<1> may be mixed with the condensed cooling-water flowing through the pipe L, and the evaporator M may be replenished through a pipe O dipping into a discharge tank R from the condenser or into the condenser itself. The supply to the evaporator E mav be obtained from the water cooled in the first evaporator M. The steam-operated exhausters N, G deliver to a common condenser H<1>, which may be special to the plant or may be the condenser of another vacuum refrigerating machine. The pump I, P may be driven from one motor T, which may be the motor for the compression machine. The plant is applicable particularly to warships already provided with compression refrigerating machines for cooling provision holds and vacuum machines for cooling ammunition holds. In such cases the vacuum machine is increased in capacity to provide the condenser cooling-water, as well as the water for cooling the holds, which may be taken from a branch U on the pipe L. In a modification, a single vacuum machine may supply cooled water for the supplementary cooler, the discharge from which is mixed with the usual supply of uncooled water to the condenser.
Patent GB-246082-A (GB)
Title: Improvements relating to fittings for braces for personal wear
IPC: A41F3/02
Filed: 1925-11-03
Abstract: 246,082. Walker, Ltd., T., and Walker, G. T. Nov. 3, 1925. Braces.-Relates to fittings for braces of the " Mikado type. According to the invention, the heel end 11 of the locking lever 9 bears against a blade spring 5 held obliquely at its edges between a loop 3, by which the webbing is attached to the fitting, and the forwardly-turned upper edge 4 of the attachment plate 1 and, at its lower edge, in a recess 6 in the attachment plate 1. The turnedover front edge of the attachment plate is secured to the main part by bent back ears or extensions.
Patent GB-1512014-A (GB)
Title: Method of attenuating longitudinal compression waves travelling in a gas filled duct
IPC: F16L55/033
Filed: 1974-06-21
Abstract: 1512014 Silencing gaseous currents UNIVERSITY OF LEEDS INDUSTRIAL SERVICES Ltd 20 June 1975 [21 June 1974]  27679/74 Heading FIB In order to compensate for frequency/phase non-linearity in analog components of an interference silencer comprising input 5, 7 and output 17 transducers and a digital phase shift arrangement 13, 14, 15, a compensating circuit 12 is included to generate an inverse transfer function to compensate for non-linear components. Amplitude/phase non-linearity may be similarly compensated. The input transducer 5 may be a compliantly mounted directional microphone and a second microphone 7 may be provided to compensate for feed-back effects. The output transducers may be a loud speaker 17 mounted, through a flexible connection 19, in the branch duct 1 and may be separated from the duct gas by a diaphragm. Alternatively a single loud speaker or an array may be mounted on the walls of the duct 3 itself.
Patent GB-1138786-A (GB)
Title: Heat- and light-stabilizers for vinyl chloride polymers and a process for their manufacture, and moulding compositions containing them
IPC: C08K5/58
Filed: 1967-06-15
Abstract: 1,138,786. Organotin compounds. FARBWERKE HOECHST A.G. 15 June, 1967 [15 June, 1966], No. 27703/67. Heading C2J. [Also in Division C3] Organotin stabilizers for P.V.C. are prepared by reacting (a) an organotin halide RSnHal 3 , where R is a hydrocarbon group of up to 20 carbons, with an equivalent amount (based on halogen) of a mixture of (b) alkali metal sulphide, (c) an alkali metal salt of a carboxylic acid of up to 20 carbons and (d) an alkali metal hydroxide in an amount of 2 moles per mole of carboxylate group; the product is a mixture of (RSnS 1.5 )n and a mixed anhydride of RSnOOH and the carboxylic acid. Examples employ (a) butyl tin trichloride, (b) sodium sulphide and (c) sodium salts of laevulinic, adipic, maleic, sebacic, phthalic, and citric acids or potassium salts of oleic, stearic or ricinoleic acids with (d) sodium or potassium hydroxide.
Patent GB-485531-A (GB)
Title: Improvements in pipe and like heat insulation
IPC: F16L59/12
Filed: 1937-10-12
Abstract: 485,531. Nonconducting coverings for heat insulation. SCHOENAU, L. C. Oct. 12, 1937, No. 27723. [Class 64 (ii)] A heat insulation for pipes &c. consists of glass wool or slag wool 9, packed around the pipe 1 within a lattice work 5 of impregnated wooden rods interconnected by wire binding 3. Non-inflammable blocks 2 support the skeleton 5 on the pipe 1. The whole is enclosed in a coating 10 of cement or like composition.
Patent GB-484066-A (GB)
Title: Improvements in or relating to the control of electric generators driven by the internal combustion engines of motor vehicles
Filed: 1936-11-13
Abstract: 484,066. Regulating. GUY, S. S., and AVERNS, R. DEAN-. Nov. 13, 1936, No. 27777/37. Divided out of 478,614, [Group XXXI]. [Class 7 (vi.)] A motor vehicle driven in the usual way through a clutch and change-speed gear, and provided with an electric generator which may be driven by the engine for supplying current, for example to a searchlight unit, is provided with a solenoid 9 energized by the current and controlling the engine throttle 13 through the lever 14, 16 and rod 19, means being also provided whereby the solenoid is automatically brought into operation when the main switch 8 controlling the supply of current is in the on ' position, and vice versa. The movement of the solenoid plunger is limited by a stop 10 adjusted by a hand wheel 11. Pin-and-slot lost motion is provided at 18 on the rod 19, and also at 23 on a rod 21 leading to the accelerator pedal 25.
Patent GB-271399-A (GB)
Title: Improvements in shaft packings
IPC: F16J15/447
Filed: 1926-11-05
Abstract: 271,399. Allmõnna Svenska Elektriska Aktiebolaget. May 19, 1926, [Convention date]. Stuffing-boxes, substitutes for; connected to source of high or low pressure.-In a turbine having an overload chamber 6 from which highpressure steam may be supplied through a passage 7 to an intermediate point in the blade system 4, a, connection is established, by means of a passage 16 inside the turbine casing, between the chamber 6 and an intermediate point in the labyrinth shaft packing, in order to return leakage steam to the blade system when working without overload. In order to prevent entrance of air when working at low load, steam may be supplied to the packing by a pipe 17. The labyrinth packing comprises rings 14, 12 on the stator and rotor carrying radial discs 13, 14 provided with intermeshing axial fins 15.
Patent GB-839123-A (GB)
Title: Reaction vessel for high temperature high pressure apparatus
IPC: B01J3/06
Filed: 1956-09-11
Abstract: <PICT:0839123/III/1> A reaction vessel for a high pressure, high temperature apparatus as described in Specification 829,990, comprises a talc cylinder having a central aperture adapted to contain a specimen, and an electrically-conductive closure for each end of the cylinder.  As shown in Fig. 1, the conductive discs 13 may be of smaller diameter than the cylinders 11.  One of the discs may be recessed into the cylinders, Fig. 2 (not shown).
Patent GB-995015-A (GB)
Title: Improvements in or relating to submarines
IPC: B63C11/46
Filed: 1962-07-19
Abstract: 995,015. Batteries. LA SPIROTECHNIQUE. July 19, 1962 [July 21, 1961], No. 27826/62. Heading H1B. [Also in Division B7] In a submarine (see Division B7), the battery comprises inner and outer shells 48 and 46 and plates 50 immersed in electrolyte 52. An insulating oil 54 is disposed between the shells and a valve 56 is provided to vent exhaust gases. The battery can be displaced through approximately 90 degrees without the electrolyte overflowing or uncovering the plates. Specification 910,052 is referred to.
Patent GB-736155-A (GB)
Title: Improvements in and relating to refrigerators
IPC: F25D23/00
Filed: 1952-11-06
Abstract: 736,155. Refrigerators ; heat-exchangers. GENERAL ELECTRIC CO. Nov. 6, 1952 [Nov. 6, 1951], No. 27977/52. Classes 29 and 64 (3). The condenser mounted on the rear wall of the cabinet comprises at least two connected planar sections oppositely inclined to the rear wall and positioned one above the other and is formed of continuous serpentine conduit with a number of parallel passes 10 and a number of spaced wires 11 secured to the conduit and extending transversely of the passes. As shown, the condenser has two inclined sections 13, 16 and a central parallel section 14 and is secured to the rear wall of the cabinet by brackets 4, 5 and 6. The wires 11 pass on both sides of the conduit and are welded or brazed thereto. The passes 10 of the conduit may be vertical and the wires horizontal. The construction enables the inclination of the sections to be increased in the limited space available behind the cabinet. Specification 736,152 is referred to.